Kathleen A. Robertson, 75, of Niagara Falls, NY, passed away on November 29, 2023 at Mount St. Mary's Hospital in Lewiston, NY.  Born in Cleveland, OH, she was the daughter of the late Edward J. and Ellen E. (Mahoney) Kleber.

Kathleen came to the Niagara Falls area with her family as a child, and was a graduate of LaSalle Senior High School.  She later earned her Associate's Degree in Nursing from NCCC, and attended additional nursing classes at Niagara University.  Kathleen was employed as an ICU Nurse at Niagara Falls Memorial Medical Center for over 30 years until her retirement in 2010.  Kathleen enjoyed gardening, traveling, and playing board games, and she loved her dog, Gracie, dearly.  Kathleen will be remembered most for her caring and even keeled nature, her intelligence, and above all her love for her family and friends.

Kathleen is survived by her daughter, Dr. Kendra A. (Peter) Sinclair, DVM; her grandchildren, Amberlee Robertson, Bryan Robertson, Harper Sinclair, Ella Sinclair, Andrew Robertson, Alex Robertson, and Aaron Robertson; her dear lifelong friend, Jean (late Michael) Strope, as well as several nieces, nephews and cousins.  She was sadly predeceased by her sons, Sean Michael Robertson and Kevin A. Robertson, and her brother, Edward J. (late Susan) Kleber.

Visitation will be held on Wednesday, December 6 from 2 – 4 PM at M.J. COLUCCI & SON NIAGARA FUNERAL CHAPEL, 2730 MILITARY ROAD, NIAGARA FALLS, NY 14304, where funeral services will begin at 4 PM.  In lieu of flowers, memorial offerings may be made to Almost Home Collie Rescue, Powell, OH, https://www.almosthomeohio.org/donate or to a charity of one's choice.  Visit mjcoluccifuneralchapel.com for online condolences.